12247648 has 72 divisors (see below), whose sum is σ = 28699272. Its totient is φ = 5128704.

The previous prime is 12247637. The next prime is 12247649. The reversal of 12247648 is 84674221.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12247649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 114411 + ... + 114517.

It is an arithmetic number, because the mean of its divisors is an integer number (398601).

Almost surely, 2^12247648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12247648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14349636).

12247648 is an abundant number, since it is smaller than the sum of its proper divisors (16451624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12247648 is a wasteful number, since it uses less digits than its factorization.

12247648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204 (or 189 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 12247648 is about 3499.6639838705. The cubic root of 12247648 is about 230.5070602625.

The spelling of 12247648 in words is "twelve million, two hundred forty-seven thousand, six hundred forty-eight".